The Teenage Engineering EP-2350 ting is a handheld microphone device, effects box, and sample player used as an input to samplers, sequencers, and other audio gizmos. The brain of the gadget is the Raspberry Pi RP2350 microcontroller. The stock firmware is a custom build of MicroPython, which means it is possible for it to run CircuitPython instead.

This guide covers the hardware teardown and reassembly, reverse engineering the pinout, loading CircuitPython on the device, and running a demo project that provides similar functionality to the original TE firmware.

Parts